frontiers

英 [ˈfrʌntɪəz]

美 [frənˈtɪrz]

n.  国界; 边界; 边境; (尤指19世纪美国西部的)开发地区边缘地带，边远地区; (学科或活动的)尖端，边缘
frontier的复数

Collins.2

柯林斯词典

• N-COUNT 边界;边境
  Afrontieris a border between two countries.
  1. It wasn't difficult then to cross the frontier.
     那时穿越边境并不困难。

in AM, usually use 美国英语通常用border


• N-COUNT 西部边疆,边远地区(指 20 世纪前美国西部欧洲移民尚未定居的部分)
  When you are talking about the western part of America before the twentieth century, you usefrontierto refer to the area beyond the part settled by Europeans.
  1. ...a far-flung outpost on the frontier.
     远驻西部边疆的前哨
• N-COUNT (尤指知识的)前沿，尖端，新领域
  Thefrontiersof something, especially knowledge, are the limits to which it extends.
  1. ...pushing back the frontiers of science.
     推进科学前沿
  2. ...technological frontiers.
     技术尖端

双语例句

• There is no way to maintain the frontiers of freedom without cost and commitment and risk.
  没有代价、承诺和风险，就不可能维持自由的边界。
• Community leaders want to strengthen controls at external frontiers
  社区领导想要加强对小区外围的管理。
• From this vantage point, the region expanded the health agenda to cover new frontiers.
  欧洲区域再接再厉，扩大了卫生议程，开拓了新的疆域。
• Researchers are pushing back the frontiers and opening doors to reveal why things happen and how things work.
  研究者们拓展了其研究领域，介绍并揭示了事物发生的原因和机理。
• With open frontiers and lax visa controls, criminals could cross into the country without restraint.
  由于边境开放和签证管理松懈，罪犯可以毫无限制地进入这个国家。
• They performed meritorious deeds in the fight to defend the frontiers of the motherland.
  在保卫祖国边疆的战斗中他们立了功。
• Young people in China and throughout the world will lead us to frontiers that we cannot imagine today.
  中国乃至全世界的年轻人将带领我们走向我们今天无法想像的科技前沿。
• It is through education that we expand the frontiers of knowledge.
  通过教育，我们扩大了知识的阵地。
• America will lead the world toward shared peace and prosperity, and the far frontiers of science and technology.
  美国要带领世界缔造共同的和平和繁荣，攀登科技的高峰。
• Their research has pushed forward the frontiers of knowledge.
  他们的研究又把知识的前沿推进了。